Naming Angles and Angle Relationships

Front

What is an angle?

Back

An angle is formed by two rays (sides of the angle) that share a common endpoint (the vertex).

Tags

CCSS.4.G.A.1

Front

What is the measure of a right angle?

Back

A right angle measures 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is a linear pair of angles?

Back

A linear pair of angles consists of two adjacent angles whose non-common sides form a straight line, and they are supplementary.

Tags

CCSS.7.G.B.5

Front

What does it mean for two angles to be supplementary?

Back

Two angles are supplementary if the sum of their measures is 180 degrees.

Tags

CCSS.7.G.B.5

Front

What is a vertical angle?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal in measure.

Tags

CCSS.7.G.B.5

Front

How do you solve for x in the equation 45 = 5x?

Back

To solve for x, divide both sides of the equation by 5, resulting in x = 9.

Tags

CCSS.6.EE.B.7

Front

What is the relationship between angles that form a straight line?

Back

Angles that form a straight line are supplementary, meaning their measures add up to 180 degrees.

Tags

CCSS.7.G.B.5

Front

What is the notation for naming an angle?

Back

An angle can be named using three points, with the vertex point in the middle, such as ∠LKJ.

Front

What is the sum of the measures of angles in a triangle?

Back

The sum of the measures of the angles in a triangle is always 180 degrees.

Tags

CCSS.8.G.A.5

Front

What is the difference between adjacent angles and vertical angles?

Back

Adjacent angles share a common side and vertex, while vertical angles are opposite each other and do not share a side.

Tags

CCSS.7.G.B.5